CVE-2021-41159

Name	CVE-2021-41159
Description	FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. All FreeRDP clients prior to version 2.4.1 using gateway connections (`/gt:rpc`) fail to validate input data. A malicious gateway might allow client memory to be written out of bounds. This issue has been resolved in version 2.4.1. If you are unable to update then use `/gt:http` rather than /gt:rdp connections if possible or use a direct connection without a gateway.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs	1001061

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
freerdp2 (PTS)	buster	2.0.0~git20190204.1.2693389a+dfsg1-1+deb10u2	vulnerable
	bullseye	2.3.0+dfsg1-2+deb11u1	vulnerable
	bookworm, sid	2.8.0+dfsg1-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
freerdp	source	(unstable)	(unfixed)
freerdp2	source	(unstable)	2.4.1+dfsg1-1			1001061

Notes

[bullseye] - freerdp2 <no-dsa> (Minor issue)
[buster] - freerdp2 <no-dsa> (Minor issue)
[stretch] - freerdp <no-dsa> (Minor issue)
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-vh34-m9h7-95xq
https://github.com/FreeRDP/FreeRDP/commit/d39a7ba5c38e3ba3b99b1558dc2ab0970cbfb0c5 (Stable 2.0 backports)
https://github.com/FreeRDP/FreeRDP/commit/f0b44da67c09488178000725ff9f2729ccfdf9fe